document.write( "Question 775314: How do you find the other endpoint of the line segment with the given endpoint and midpoint
\n" ); document.write( "Endpoint:(8,9), midpoint:(-10,4) \n" ); document.write( "

Algebra.Com's Answer #472756 by jim_thompson5910(35256) $\"\"$ $\"About$

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(8+x)/2 = -10\r
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\n" ); document.write( "\n" ); document.write( "8+x = 2*(-10)\r
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\n" ); document.write( "\n" ); document.write( "8+x = -20\r
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\n" ); document.write( "\n" ); document.write( "x = -20 - 8\r
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\n" ); document.write( "\n" ); document.write( "x = -28\r
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\n" ); document.write( "\n" ); document.write( "(9+y)/2 = 4\r
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\n" ); document.write( "\n" ); document.write( "9+y = 2*4\r
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\n" ); document.write( "\n" ); document.write( "9+y = 8\r
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\n" ); document.write( "\n" ); document.write( "y = 8 - 9\r
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\n" ); document.write( "\n" ); document.write( "y = -1\r
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\n" ); document.write( "\n" ); document.write( "So the other endpoint is (-28, -1) \n" ); document.write( "

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